#include<bits/stdc++.h>
using namespace std;
#define lowbit(x) ((x)&(-(x)))
const int N=1e6+10;
int main(){
    freopen("arena.in","r",stdin);
    freopen("arena.out","w",stdout);

    return 0;
}
//Never Forget freopen("xx.in","r",stdin); !!!!!!
//Be attetion to the data range and Long Long !!!
//Force Solution must be started in 30 minutes!!!
